Shapes are always areas defined by the the borders of an enclosing outline or contour.

two-dimensional, or flat, area

Explanation:

The shapes are defined as the two-dimensional figure that maybe flat areas.

The shapes encloses a certain area within the outline or the contour that distinguishes the different shapes.

The shape maybe of anything i.e it maybe human, a living thing or a non living thing or objects.

The different geometric shapes are

square

rectangle

circle etc.

answer; timpani,horns and bells;

is it ''blue notes? ''

hope i ! you didn't give any options so i hope that was correct! < 3